CN104659700B - Automatic gas filling warning device of SF6 gas insulated metal closed switch equipment - Google Patents
Automatic gas filling warning device of SF6 gas insulated metal closed switch equipment Download PDFInfo
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- CN104659700B CN104659700B CN201510045062.9A CN201510045062A CN104659700B CN 104659700 B CN104659700 B CN 104659700B CN 201510045062 A CN201510045062 A CN 201510045062A CN 104659700 B CN104659700 B CN 104659700B
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- valve
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- gas tank
- air chamber
- arm
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/065—Means for detecting or reacting to mechanical or electrical defects
Abstract
Aiming at the defect or deficiency of the existing manual SF6 gas filling device, the invention discloses an automatic gas filling warning device of SF6 gas insulated metal closed switch equipment. In consideration of determining the automatic stopping of SF6 gas filling operation according to the rated working gas pressure of a closed switch gas chamber, determining gas tank switching according to gas tank pressure and weight and giving out a corresponding warning according to environment state and gas filling state detection, a set of SF6 gas filling automatic stopping, warning, switching and monitoring device is developed to enable the GIS gas filling operation to be standardized, intelligent and automatic, so that the gas filling quality is ensured, the gas filling efficiency is improved, the GIS gas filling is safer, more efficient and economic, and the gas insulating strength and arc extinction capacity of closed switch equipment can be effectively guaranteed.
Description
Technical field
The invention belongs to electrical engineering gases at high pressure sealing switch equipment automatic control technology field is and in particular to one kind is right
The device that gas-insulated enclosed switch (GIS) equipment automatic inflating is reported to the police.
Background technology
With power network development, its electric pressure more and more higher, capacity of short circuit is also increasing, and the insulation to grid equipment is strong
Degree and the requirement more and more higher of arc extinguishing ability.For these requirements, due to sulfur hexafluoride (SF6) gas strong electronegativity feature and
There is excellent insulating properties and arc extinction performance, be widely used in high-voltage switch gear field, in high voltage and supertension etc.
Used in a large number in the equipment such as chopper, Cubicle Gas-Insulated Switchgear (GIS) in level, and also progressively to mesolow
Field is permeated.Particularly, because GIS is chopper, disconnecting switch, bus, earthed switch, transformer, outlet casing tube or cable
Terminals etc. are attached separately to middle concentration between each self sealss and form a whole shell, and are filled with SF6Gas as dielectric, its
Have compact conformation, small volume, lightweight, do not affected by atmospheric condition, maintenance interval length, oncontacting electrification and electrical noise interference
The advantages of, have become as the first-selection of transformer substation in city.
Nowadays SF6Most important insulation and arc extinguishing gases medium in electrical network are become.But although pure SF6Gas
There is excellent insulating properties and arc extinction performance, but, with the reduction of its purity, particularly when gas purity does not reach regulation
Requirement when, its electric property can occur significantly to deteriorate.As SF in just specifying in relevant criterion to run6Gas purity must not
Less than 97%.In equipment running process, because high-current on-off and discharge fault make SF6Decompose, produce oxygen gas and water and
Other decomposition of chemical compounds, not only make insulant deteriorate, also can etching apparatus metal material.Particularly, moisture
Increase, insulating properties, break performance and mechanical performance can be directly affected.Therefore, for playing SF6The excellent insulation of gas and going out
Arc performance, needs to change in time SF6The not SF of compliance apparatus6Gas is it is ensured that the safe operation of electrical equipment.
It is true that existing SF6The inflation system overwhelming majority is all to rely on manually, needs staff's basis at the scene
(one is filled with SF to GIS air chamber6Confined gas space) air pressure meter reading determines whether inflation completes, and according to air pressure tank air pressure
Meter reading determines the need for more scavenging air receiver, for a standard air chamber, completes complete air exchange and generally requires 10-15 days
Time, whole charging efficiency is low.In inflation scene, staff's often change according to air chamber or gas tank air pressure meter reading
Speed judging whether gas freezes, to decide whether more scavenging air receiver, but the difference of the judgement due to staff,
It is likely to result in gas tank being just replaced when also having more sulfur hexafluoride gas, cause the waste of resource.Artificial
During inflation, because staff reads, barometric time interval is longer, and the speed of operation valve is slow, easily produces gas
The too high situation of chamber pressure, not only causes the waste of resource, also add the time that transformer station puts into operation.Manual inflation's
When, entering it is difficult to ensure ventilation of the impurity such as water, air is on the one hand led to because of the operational error of staff
Quality, it could even be possible to because the reduction of gas purity, leading to the reduction of its dielectric strength, and then lead to insulation breakdown, occurs
Power outage；On the other hand sulfur hexafluoride gas may be led to be discharged in the air, lead to the aggravation of greenhouse effect, and may
The sulfur hexafluoride gas leading to density ratio air big deposit to the low-lying place such as cable duct of transformer station, lead to the oxygen of the inside to contain
Amount declines, and when the rated value specifying less than code, may cause personal injury to staff.
Content of the invention
For above-mentioned existing artificial SF6The defect of aerating device or not enough it is considered to according to the specified work of enclosed switch air chamber
Determine SF as air pressure6According to gas tank air pressure and weight, being automatically stopped of inflation work, determines that gas tank switches, and according to ambient condition
Send corresponding alarm with inflated condition detection, develop a set of SF6Inflation is automatically stopped, reports to the police, switching and monitoring device, will
Charging efficiency, it is ensured that charge-air mass, improves so that GIS inflation is more pacified in GIS inflation woprk standardization, intelligent and automatization
Entirely, efficient and economical, dielectric strength and the arc extinguishing ability of sealing switch equipment gas can be effectively ensured.
Employed technical scheme comprise that such for realizing the object of the invention, a kind of SF6Gas-insulated metal enclosed switchgear
Equipment automatic inflating alarm device it is characterised in that：Supply SF including to the first air chamber, the second air chamber and the 3rd air chamber6Gas
First gas tank, the second gas tank, the 3rd gas tank and the 4th gas tank.
Described first gas tank, the second gas tank, the 3rd gas tank and the 4th gas tank be individually positioned in the first weight sensor, second
Weight sensor, the 3rd weight sensor and the 4th weight sensor
The gas outlet of described first gas tank is connected with main pipeline by the first gas tank arm, and described first gas tank arm is pacified
Equipped with the first gas tank valve.
The gas outlet of described second gas tank is connected with main pipeline by the second gas tank arm, and described second gas tank arm is pacified
Equipped with the second gas tank valve.
The gas outlet of described 3rd gas tank is connected with main pipeline by the 3rd gas tank arm, and described 3rd gas tank arm is pacified
Equipped with the 3rd gas tank valve.
The gas outlet of described 4th gas tank is connected with main pipeline by the 4th gas tank arm, and described 4th gas tank arm is pacified
Equipped with the 4th gas tank valve.
Described main pipeline is also connected with the inlet end of the first air chamber arm, the second air chamber arm and the 3rd air chamber arm.
The first air chamber is accessed in the outlet side of described first air chamber arm.On described first air chamber arm, the first air chamber is installed
Valve.The first flow sensor of gas flow in measurement pipe, gas pressure in measurement pipe are also equipped with described first air chamber arm
First temperature sensor of gas temperature in first baroceptor of power and measurement pipe.
The second air chamber is accessed in the outlet side of described second air chamber arm.On described second air chamber arm, the second air chamber is installed
Valve.The second flow sensor of gas flow in measurement pipe, gas pressure in measurement pipe are also equipped with described second air chamber arm
The second temperature sensor of gas temperature in second baroceptor of power and measurement pipe.
The 3rd air chamber is accessed in the outlet side of described 3rd air chamber arm.On described 3rd air chamber arm, the 3rd air chamber is installed
Valve.3rd flow transducer of gas flow in measurement pipe, gas pressure in measurement pipe are also equipped with described 3rd air chamber arm
The three-temperature sensor of gas temperature in 3rd baroceptor of power and measurement pipe.
Gas stream in described first flow sensor, second flow sensor and the 3rd flow transducer difference measurement pipe
Amount：Q1、Q2And Q3.
Open at least one of the first gas tank valve, the second gas tank valve, the 3rd gas tank valve and the 4th gas tank valve,
Meanwhile, at least one of the first air chamber valve, the second air chamber valve and the 3rd air chamber valve are opened.
If the first air chamber valve is opened, work as Q1During ＜ 0.1L/s, close the first gas tank valve, the second gas tank valve, the 3rd
The valve having already turned in gas tank valve and the 4th gas tank valve, and change corresponding gas tank.
If the second air chamber valve is opened, work as Q2During ＜ 0.1L/s, close the first gas tank valve, the second gas tank valve, the 3rd
The valve having already turned in gas tank valve and the 4th gas tank valve, and change corresponding gas tank.
If the 3rd air chamber valve is opened, work as Q3During ＜ 0.1L/s, close the first gas tank valve, the second gas tank valve, the 3rd
The valve having already turned in gas tank valve and the 4th gas tank valve, and change corresponding gas tank.
Gas pressure in described first baroceptor, the second baroceptor and the 3rd baroceptor difference measurement pipe
Power：P1、P2And P3.
Open at least one of the first gas tank valve, the second gas tank valve, the 3rd gas tank valve and the 4th gas tank valve,
Meanwhile, at least one of the first air chamber valve, the second air chamber valve and the 3rd air chamber valve are opened.
If the first air chamber valve is opened, work as P1≥PeWhen, close the first air chamber valve.Wherein PeSpecified for code setting
Value, such as 110 kilovolts of GIS combination electric appliance, the nominal pressure of its chopper air chamber is 0.6Mpa (20 DEG C of gauge pressure), its
The nominal pressure of his air chamber is 0.4Mpa (20 DEG C of gauge pressure).
If the second air chamber valve is opened, work as P2≥PeWhen, close the second air chamber valve.
If the 3rd air chamber valve is opened, work as P3≥PeWhen, close the 3rd air chamber valve.
Gas temperature in described first temperature sensor, second temperature sensor and three-temperature sensor difference measurement pipe
Degree：t1、t2And t3.
Open at least one of the first gas tank valve, the second gas tank valve, the 3rd gas tank valve and the 4th gas tank valve,
Meanwhile, at least one of the first air chamber valve, the second air chamber valve and the 3rd air chamber valve are opened.
If the first air chamber valve is opened, work as t1During 60 DEG C of ＞, close the first air chamber valve.
If the second air chamber valve is opened, work as t2During 60 DEG C of ＞, close the second air chamber valve.
If the 3rd air chamber valve is opened, work as t3During 60 DEG C of ＞, close the 3rd air chamber valve.
Described first weight sensor, the second weight sensor, the 3rd weight sensor and the 4th weight sensor are respectively
Measure the first gas tank, weight m of the second gas tank, the 3rd gas tank and the 4th gas tank1、m2、m3And m4.
Work as m1≤msWhen, close the first gas tank valve, and change the first gas tank.Wherein msFor the threshold value setting, typically difference
Sulfur hexafluoride gas tank manufacturer value different, for general 38-40L gas tank, value is about 50kg.
Work as m2≤msWhen, close the second gas tank valve, and change the second gas tank.
Work as m3≤msWhen, close the 3rd gas tank valve, and change the 3rd gas tank.
Work as m4≤msWhen, close the 4th gas tank valve, and change the 4th gas tank.
It is placed near device or is arranged on the ring of the environment humidity sensor measurement apparatus region on main pipeline
Border temperature tenWith ambient humidity RHen.
Open at least one of the first gas tank valve, the second gas tank valve, the 3rd gas tank valve and the 4th gas tank valve,
Meanwhile, at least one of the first air chamber valve, the second air chamber valve and the 3rd air chamber valve are opened.
If RHen＞ 90% or ten60 DEG C of ＞, closes whole valves, stops inflation, sends alarm.
If not in gas replenishment process, Locking type valve, forbid inflating, send alarm.
The present invention mainly has the effect that：
(1) open electromagnetic valve by computer controls, whether detection ambient temperature and humidity t and RH meets regulatory requirements value,
I.e. temperature have to be lower than 60 DEG C, and relative humidity needs less than 90%；If being unsatisfactory for requiring, closing valve and stopping inflation.
(2) self-filler described in can measure SF simultaneously6Gas flow Q, according to enclosed switch air chamber air pressure P, body
Long-pending V, the relation of temperature t, calculate enclosed switch air chamber institute air demand V0, thus obtaining automatic inflating to be expected required time t；
(3) measure gas tank air pressure P1With weight M1, according to new bottle SF6Weight MBottleWith volume VBottle, using formula MSurplus=M1-MBottle
Calculate SF6Gas tank volume of rest gas MSurplus, when volume of rest gas is less than threshold value msWhen send more scavenging air receiver report to the police；
(4) upon inflation between when reaching the required time t calculating before, whether measurement gas confinement switching gas chamber air pressure P
Meet specification requirement value Pe, when be unsatisfactory for require (P≤Pe) when, again it is modified according to air chamber air pressure and flow versus time；When
Meet and require (P >=Pe) when, then close valve, complete to inflate.
(5) when being inflated to multiple air chambers using this device, multiple air chambers are connected with gas tank, each air chamber connects
Appendix is mounted on controllable valve and sensor, as shown in Figure 3.When opening valve and being inflated, by sensor to gas shape
State is detected, when ambient temperature and humidity and gas temperature are unsatisfactory for requiring, then close valve and stops inflation；When air chamber 1 air pressure
When satisfaction requires, then close the controllable valve 1 of air chamber, this chamber inflated completes, other air chambers continue inflation.
Brief description
Fig. 1 is present configuration figure.
Fig. 2 inflates connection diagram for the many air chambers of the present invention simultaneously.
Fig. 3 is weight sensor placement location figure.
Fig. 4 is self-filler Control System Software decision flow chart.
In figure：Gas tank (1), gas tank valve (2), air chamber valve (5), flow transducer (6), baroceptor (7), temperature
Sensor (8), air chamber (9), weight sensor (11), environment humidity sensor (12), moveable platform (13), computer
(14), operating board (15).First gas tank (101), the second gas tank (102), the 3rd gas tank (103), the 4th gas tank (104), first
Weight sensor (111), the second weight sensor (112), the 3rd weight sensor (113), the 4th weight sensor (114),
First gas tank valve (201), the second gas tank valve (202), the 3rd gas tank valve (203), the 4th gas tank valve (204), first
Gas tank arm (301), the second gas tank arm (302), the 3rd gas tank arm (303), the 4th gas tank arm (304), the first air chamber
Arm (401), the second air chamber arm (402), the 3rd air chamber arm (403), the first air chamber valve (501), the second air chamber valve
(502), the 3rd air chamber valve (503), first flow sensor (601), second flow sensor (602), the 3rd flow sensing
Device (603), the first baroceptor (701), the second baroceptor (702), the 3rd baroceptor (703), the first temperature
Sensor (801), second temperature sensor (802), three-temperature sensor (803), the first air chamber (901), the second air chamber
(902), the 3rd air chamber (903).
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples, but should not be construed the above-mentioned theme of the present invention
Scope is only limitted to following embodiments.Without departing from the idea case in the present invention described above, known according to ordinary skill
Know and customary means, make various replacements and change, all should include within the scope of the present invention.
Embodiment 1：
A kind of SF6Cubicle Gas-Insulated Switchgear automatic inflating alarm device it is characterised in that：Including to first
Air chamber 901, the second air chamber 902 and the 3rd air chamber 903 supply SF6First gas tank 101 of gas, the second gas tank 102, the 3rd gas tank
103 and the 4th gas tank 104.
Described first gas tank 101, the second gas tank 102, the 3rd gas tank 103 and the 4th gas tank 104 are individually positioned in the first weight
Quantity sensor 111, the second weight sensor 112, the 3rd weight sensor 113 and the 4th weight sensor 114
The gas outlet of described first gas tank 101 is connected with main pipeline 16 by the first gas tank arm 301, described first gas tank
First gas tank valve 201 is provided with arm 301.
The gas outlet of described second gas tank 102 is connected with main pipeline 16 by the second gas tank arm 302, described second gas tank
Second gas tank valve 202 is provided with arm 302.
The gas outlet of described 3rd gas tank 103 is connected with main pipeline 16 by the 3rd gas tank arm 303, described 3rd gas tank
3rd gas tank valve 203 is provided with arm 303.
The gas outlet of described 4th gas tank 104 is connected with main pipeline 16 by the 4th gas tank arm 304, described 4th gas tank
4th gas tank valve 204 is provided with arm 304.
Described main pipeline 16 also with the entering of the first air chamber arm 401, the second air chamber arm 402 and the 3rd air chamber arm 403
Gas end connects.
The first air chamber 901 is accessed in the outlet side of described first air chamber arm 401.Install on described first air chamber arm 401
There is the first air chamber valve 501.The first flow sensor of gas flow in measurement pipe is also equipped with described first air chamber arm 401
601st, in measurement pipe in the first baroceptor 701 of gas pressure and measurement pipe gas temperature the first temperature sensor
801.
The second air chamber 902 is accessed in the outlet side of described second air chamber arm 402.Install on described second air chamber arm 402
There is the second air chamber valve 502.The second flow sensor of gas flow in measurement pipe is also equipped with described second air chamber arm 402
602nd, in measurement pipe in the second baroceptor 702 of gas pressure and measurement pipe gas temperature second temperature sensor
802.
The 3rd air chamber 903 is accessed in the outlet side of described 3rd air chamber arm 403.Install on described 3rd air chamber arm 403
There is the 3rd air chamber valve 503.3rd flow transducer of gas flow in measurement pipe is also equipped with described 3rd air chamber arm 403
603rd, in measurement pipe in the 3rd baroceptor 703 of gas pressure and measurement pipe gas temperature three-temperature sensor
803.
Embodiment 2：
A kind of using embodiment 1 described device controls SF6The side of Cubicle Gas-Insulated Switchgear automatic inflating
Method：
Described first flow sensor 601, second flow sensor 602 and the 3rd flow transducer 603 measurement pipe respectively
Interior gas flow：Q1、Q2And Q3.
Open the first gas tank valve 201, the second gas tank valve 202, the 3rd gas tank valve 203 and the 4th gas tank valve 204
At least one of, open in the first air chamber valve 501, the second air chamber valve 502 and the 3rd air chamber valve 503 extremely meanwhile
Few one.
If the first air chamber valve 501 is opened, work as Q1During ＜ 0.1L/s, close the first gas tank valve 201, the second gas tank valve
202nd, the valve having already turned in the 3rd gas tank valve 203 and the 4th gas tank valve 204, and change corresponding gas tank.
If the second air chamber valve 502 is opened, work as Q2During ＜ 0.1L/s, close the first gas tank valve 201, the second gas tank valve
202nd, the valve having already turned in the 3rd gas tank valve 203 and the 4th gas tank valve 204, and change corresponding gas tank.
If the 3rd air chamber valve 503 is opened, work as Q3During ＜ 0.1L/s, close the first gas tank valve 201, the second gas tank valve
202nd, the valve having already turned in the 3rd gas tank valve 203 and the 4th gas tank valve 204, and change corresponding gas tank.
Embodiment 3：
A kind of using embodiment 1 described device controls SF6The side of Cubicle Gas-Insulated Switchgear automatic inflating
Method：
Described first baroceptor 701, the second baroceptor 702 and the 3rd baroceptor 703 measurement pipe respectively
Interior gas pressure：P1、P2And P3.
Open the first gas tank valve 201, the second gas tank valve 202, the 3rd gas tank valve 203 and the 4th gas tank valve 204
At least one of, open in the first air chamber valve 501, the second air chamber valve 502 and the 3rd air chamber valve 503 extremely meanwhile
Few one.
If the first air chamber valve 501 is opened, work as P1≥PeWhen, close the first air chamber valve 501.
If the second air chamber valve 502 is opened, work as P2≥PeWhen, close the second air chamber valve 502.
If the 3rd air chamber valve 503 is opened, work as P3≥PeWhen, close the 3rd air chamber valve 503.
Embodiment 4：
A kind of using embodiment 1 described device controls SF6The side of Cubicle Gas-Insulated Switchgear automatic inflating
Method：
Described first temperature sensor 801, second temperature sensor 802 and three-temperature sensor 803 measurement pipe respectively
Interior gas temperature：t1、t2And t3.
Open the first gas tank valve 201, the second gas tank valve 202, the 3rd gas tank valve 203 and the 4th gas tank valve 204
At least one of, open in the first air chamber valve 501, the second air chamber valve 502 and the 3rd air chamber valve 503 extremely meanwhile
Few one.
If the first air chamber valve 501 is opened, work as t1During 60 DEG C of ＞, close the first air chamber valve 501.
If the second air chamber valve 502 is opened, work as t2During 60 DEG C of ＞, close the second air chamber valve 502.
If the 3rd air chamber valve 503 is opened, work as t3During 60 DEG C of ＞, close the 3rd air chamber valve 503.
Embodiment 5：
A kind of using embodiment 1 described device controls SF6The side of Cubicle Gas-Insulated Switchgear automatic inflating
Method：
Described first weight sensor 111, the second weight sensor 112, the 3rd weight sensor 113 and the 4th weight pass
Sensor 114 measures the first gas tank 101, weight m of the second gas tank 102, the 3rd gas tank 103 and the 4th gas tank 104 respectively1、m2、m3
And m4.
Work as m1≤msWhen, close the first gas tank valve 201, and change the first gas tank 101.
Work as m2≤msWhen, close the second gas tank valve 202, and change the second gas tank 102.
Work as m3≤msWhen, close the 3rd gas tank valve 203, and change the 3rd gas tank 103.
Work as m4≤msWhen, close the 4th gas tank valve 204, and change the 4th gas tank 104.
Embodiment 6：
A kind of using embodiment 1 described device controls SF6The side of Cubicle Gas-Insulated Switchgear automatic inflating
Method：Ambient temperature t of environment humidity sensor 12 measurement apparatus regionenWith ambient humidity RHen.
Open the first gas tank valve 201, the second gas tank valve 202, the 3rd gas tank valve 203 and the 4th gas tank valve 204
At least one of, open in the first air chamber valve 501, the second air chamber valve 502 and the 3rd air chamber valve 503 extremely meanwhile
Few one.
If RHen＞ 90% or ten60 DEG C of ＞, closes whole valves, stops inflation, sends alarm.
Embodiment 7：
A kind of using embodiment 1 described device controls SF6The side of Cubicle Gas-Insulated Switchgear automatic inflating
Method：
Open the first gas tank valve 201, the second gas tank valve 202, the 3rd gas tank valve 203 and the 4th gas tank valve 204,
Meanwhile, the first air chamber valve 501, the second air chamber valve 502 and the 3rd air chamber valve 503 are opened.
Described first flow sensor 601, second flow sensor 602 and the 3rd flow transducer 603 measurement pipe respectively
Interior gas flow：Q1、Q2And Q3.
Described first baroceptor 701, the second baroceptor 702 and the 3rd baroceptor 703 measurement pipe respectively
Interior gas pressure：P1、P2And P3.
Described first temperature sensor 801, second temperature sensor 802 and three-temperature sensor 803 measurement pipe respectively
Interior gas temperature：t1、t2And t3.
Described first weight sensor 111, the second weight sensor 112, the 3rd weight sensor 113 and the 4th weight pass
Sensor 114 measures the first gas tank 101, weight m of the second gas tank 102, the 3rd gas tank 103 and the 4th gas tank 104 respectively1、m2、m3
And m4.
Ambient temperature t of environment humidity sensor 12 measurement apparatus regionenWith ambient humidity RHen.
The valve of whole dynamic gas pressure system is switched on and off the corresponding pass between situation and the data that sensor acquisition arrives
System is as follows：
Table 1 sensor acquisition to data and valve cut-off the corresponding table of situation
P in tableeThe rated pressure of the air chamber specifying for code, is 0.6Mpa (20 DEG C of gauge pressure) for chopper air chamber,
It is 0.4Mpa (20 DEG C of gauge pressure) for other air chambers.msFor gas tank weight with because air pressure too low can not give chamber inflated hexafluoro
Change the sum of sulfur gas weight, for general 38-40L gas tank, value is about 50kg.
Claims (6)
1. a kind of SF6Cubicle Gas-Insulated Switchgear automatic inflating alarm device it is characterised in that：Including to the first gas
Room (901), the second air chamber (902) and the 3rd air chamber (903) supply SF6First gas tank (101) of gas, the second gas tank (102),
Three gas tanks (103) and the 4th gas tank (104)；
Described first gas tank (101), the second gas tank (102), the 3rd gas tank (103) and the 4th gas tank (104) are individually positioned in
One weight sensor (111), the second weight sensor (112), the 3rd weight sensor (113) and the 4th weight sensor
(114)；
The gas outlet of described first gas tank (101) is connected with main pipeline (16) by the first gas tank arm (301), described first gas
First gas tank valve (201) is provided with tank arm (301)；
The gas outlet of described second gas tank (102) is connected with main pipeline (16) by the second gas tank arm (302), described second gas
Second gas tank valve (202) is provided with tank arm (302)；
The gas outlet of described 3rd gas tank (103) is connected with main pipeline (16) by the 3rd gas tank arm (303), described 3rd gas
3rd gas tank valve (203) is provided with tank arm (303)；
The gas outlet of described 4th gas tank (104) is connected with main pipeline (16) by the 4th gas tank arm (304), described 4th gas
4th gas tank valve (204) is provided with tank arm (304)；
Described main pipeline (16) also with the entering of air chamber arm (401), the second air chamber arm (402) and the 3rd air chamber arm (403)
Gas end connects；
The first air chamber (901) is accessed in the outlet side of described first air chamber arm (401)；Described first air chamber arm (401) is upper to pacify
Equipped with the first air chamber valve (501)；The first flow of gas flow in measurement pipe is also equipped with described first air chamber arm (401)
The first of gas temperature in first baroceptor (701) of gas pressure and measurement pipe in sensor (601), measurement pipe
Temperature sensor (801)；
The second air chamber (902) is accessed in the outlet side of described second air chamber arm (402)；Described second air chamber arm (402) is upper to pacify
Equipped with the second air chamber valve (502)；The second flow of gas flow in measurement pipe is also equipped with described second air chamber arm (402)
The second of gas temperature in second baroceptor (702) of gas pressure and measurement pipe in sensor (602), measurement pipe
Temperature sensor (802)；
The 3rd air chamber (903) is accessed in the outlet side of described 3rd air chamber arm (403)；Described 3rd air chamber arm (403) is upper to pacify
Equipped with the 3rd air chamber valve (503)；3rd flow of gas flow in measurement pipe is also equipped with described 3rd air chamber arm (403)
The 3rd of gas temperature in 3rd baroceptor (703) of gas pressure and measurement pipe in sensor (603), measurement pipe
Temperature sensor (803).
2. adopt a kind of of claim 1 described device to control SF6The side of Cubicle Gas-Insulated Switchgear automatic inflating
Method it is characterised in that：
Described first flow sensor (601), second flow sensor (602) and the 3rd flow transducer (603) measure respectively
Gas flow in pipe：Q1、Q2And Q3；
Open the first gas tank valve (201), the second gas tank valve (202), the 3rd gas tank valve (203) and the 4th gas tank valve
At least one of (204), meanwhile, open the first air chamber valve (501), the second air chamber valve (502) and the 3rd air chamber valve
At least one of (503)；
If the first air chamber valve (501) is opened, work as Q1During ＜ 0.1L/s, close the first gas tank valve (201), the second gas tank valve
(202), the valve having already turned in the 3rd gas tank valve (203) and the 4th gas tank valve (204), and change corresponding gas tank；
If the second air chamber valve (502) is opened, work as Q2During ＜ 0.1L/s, close the first gas tank valve (201), the second gas tank valve
(202), the valve having already turned in the 3rd gas tank valve (203) and the 4th gas tank valve (204), and change corresponding gas tank；
If the 3rd air chamber valve (503) is opened, work as Q3During ＜ 0.1L/s, close the first gas tank valve (201), the second gas tank valve
(202), the valve having already turned in the 3rd gas tank valve (203) and the 4th gas tank valve (204), and change corresponding gas tank.
3. adopt a kind of of claim 1 described device to control SF6The side of Cubicle Gas-Insulated Switchgear automatic inflating
Method it is characterised in that：
Described first baroceptor (701), the second baroceptor (702) and the 3rd baroceptor (703) measure respectively
Gas pressure in pipe：P1、P2And P3；
Open the first gas tank valve (201), the second gas tank valve (202), the 3rd gas tank valve (203) and the 4th gas tank valve
At least one of (204), meanwhile, open the first air chamber valve (501), the second air chamber valve (502) and the 3rd air chamber valve
At least one of (503)；
If the first air chamber valve (501) is opened, work as P1≥PeWhen, close the first air chamber valve (501)；Wherein PeSet for code
Rated value, such as 110 kilovolts of GIS combination electric appliance, the nominal pressure of its chopper air chamber is 0.6Mpa (gauge pressure
20 DEG C), the nominal pressure of other air chambers is 0.4Mpa (20 DEG C of gauge pressure), similarly hereinafter；
If the second air chamber valve (502) is opened, work as P2≥PeWhen, close the second air chamber valve (502)；
If the 3rd air chamber valve (503) is opened, work as P3≥PeWhen, close the 3rd air chamber valve (503).
4. adopt a kind of of claim 1 described device to control SF6The side of Cubicle Gas-Insulated Switchgear automatic inflating
Method it is characterised in that：
Described first temperature sensor (801), second temperature sensor (802) and three-temperature sensor (803) measure respectively
Gas temperature in pipe：t1、t2And t3；
Open the first gas tank valve (201), the second gas tank valve (202), the 3rd gas tank valve (203) and the 4th gas tank valve
At least one of (204), meanwhile, open the first air chamber valve (501), the second air chamber valve (502) and the 3rd air chamber valve
At least one of (503)；
If the first air chamber valve (501) is opened, work as t1During 60 DEG C of ＞, according to concerned countries standard and electric power standard, close the first gas
Room valve (501)；
If the second air chamber valve (502) is opened, work as t2During 60 DEG C of ＞, according to concerned countries standard and electric power standard, close the second gas
Room valve (502)；
If the 3rd air chamber valve (503) is opened, work as t3During 60 DEG C of ＞, according to concerned countries standard and electric power standard, close the 3rd gas
Room valve (503).
5. adopt a kind of of claim 1 described device to control SF6The side of Cubicle Gas-Insulated Switchgear automatic inflating
Method it is characterised in that：
Described first weight sensor (111), the second weight sensor (112), the 3rd weight sensor (113) and the 4th weight
Sensor (114) measures the first gas tank (101), the second gas tank (102), the 3rd gas tank (103) and the 4th gas tank (104) respectively
Weight m1、m2、m3And m4；
Work as m1≤msWhen, close the first gas tank valve (201), and change the first gas tank (101)；Wherein msFor set threshold value, one
As different sulfur hexafluoride gas tank manufacturer value different, for general 38-40L gas tank, value is about 50kg, under
With；
Work as m2≤msWhen, close the second gas tank valve (202), and change the second gas tank (102)；
Work as m3≤msWhen, close the 3rd gas tank valve (203), and change the 3rd gas tank (103)；
Work as m4≤msWhen, close the 4th gas tank valve (204), and change the 4th gas tank (104).
6. adopt a kind of of claim 1 described device to control SF6The side of Cubicle Gas-Insulated Switchgear automatic inflating
Method it is characterised in that：Ambient temperature t of environment humidity sensor (12) measurement apparatus regionenWith ambient humidity RHen；
Open the first gas tank valve (201), the second gas tank valve (202), the 3rd gas tank valve (203) and the 4th gas tank valve
At least one of (204), meanwhile, open the first air chamber valve (501), the second air chamber valve (502) and the 3rd air chamber valve
At least one of (503)；
If RHen＞ 90% or ten60 DEG C of ＞, closes whole valves, stops inflation, sends alarm；
When not in gas replenishment process, if RHen＞ 90% or tenDuring 60 DEG C of ＞, then Locking type valve, forbid inflating, send alarm.
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|---|---|---|---|
| CN201510045062.9A CN104659700B (en) | 2015-01-29 | 2015-01-29 | Automatic gas filling warning device of SF6 gas insulated metal closed switch equipment |
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|---|---|---|---|
| CN201510045062.9A CN104659700B (en) | 2015-01-29 | 2015-01-29 | Automatic gas filling warning device of SF6 gas insulated metal closed switch equipment |
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| CN104659700B true CN104659700B (en) | 2017-02-22 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105846337A (en) * | 2016-05-18 | 2016-08-10 | 国家电网公司 | Novel inflatable switch cabinet |
| CN108105585B (en) * | 2017-11-29 | 2024-04-12 | 广东电网有限责任公司惠州供电局 | Real-time monitoring air supplementing device and method for GIS equipment storage |
| CN112152136B (en) * | 2020-09-21 | 2023-01-20 | 湖北省电力装备有限公司 | Gas-insulated metal-enclosed switchgear for high-voltage power |
| CN112344216B (en) * | 2020-10-19 | 2022-11-01 | 广西电网有限责任公司百色供电局 | Multi-loop automatic control device of SF6 gas recovery device |
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